r/r-1+r/r^2-1=12/r+1

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Solution for r/r-1+r/r^2-1=12/r+1 equation: 



r/r-1+r/r^2-1=12/r+1

We move all terms to the left:

r/r-1+r/r^2-1-(12/r+1)=0



Domain of the equation: r!=0

r∈R





Domain of the equation: r^2!=0

r^2!=0/

r^2!=√0

r!=0

r∈R





Domain of the equation: r+1)!=0

r∈R



We add all the numbers together, and all the variables

r/r+r/r^2-(12/r+1)-2=0

We get rid of parentheses

r/r+r/r^2-12/r-1-2=0

Fractions to decimals

r/r^2-12/r-1-2+1=0

We calculate fractions

We do not support erpression: r^3

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